564-56+47简便计算,急!!

2025-03-11 02:31:04
推荐回答(3个)
回答1:

=(564-64)+(8+47)
=500+55
=555

回答2:

564-56+47
= 508+56-56+47
= 555

回答3:

解,原式=(564-64)+(8+47)
=500+55
=555